It can help with everyday PDF and file workflows in the browser, such as compressing, merging, splitting, rotating, visible edits, signatures, watermarks, and supported conversions.
Image and document tools
PNG Compressor
Free online file compression with no sign up or login required. Buy me a coffee
Mirown is free to use, if this tool saves your time
Free file compressor
Compress PNG images while keeping PNG output.
Mirown PNG Compressor keeps the PNG format and uses browser image processing to reduce file size where possible. Upload several PNG images, choose a level, and compare each result before downloading as a ZIP.
PNG is often used for screenshots, transparent graphics, UI images, and clean artwork. Some PNG files are already optimized, so the reduction can vary.
What this free compressor includes
- Multiple PNG upload
- PNG output preserved
- Quality-focused size levels
- Before and after table
- Free ZIP download
How to use PNG Compressor
- Click Upload PNG and select one or multiple PNG images.
- Choose Less compression for high quality, Medium compression for balanced results, or Extreme compression for the smallest size. Medium compression is recommended for most files.
- Click Compress all files and let your browser process the files.
- Check the before size, after size, and reduction percentage for every file.
- Download the compressed results as a ZIP file and review them before replacing your originals.
Why use Mirown PNG Compressor?
Mirown keeps compression simple, free, and private for everyday work. There is no account, no sign up, no login, and no complicated settings. The page is built with real crawlable text, fast static loading, and a focused browser tool so users can understand the result before downloading.
Privacy and browser-only notes
Mirown file compressor pages are designed for local browser processing. That means supported files can be prepared on your device without upload-based storage. Keep your original files, especially for important documents, and review compressed output before sending it to someone else.
Important compression limit
Browser PNG encoding does not expose the same deep optimizer settings as native tools. Large reductions usually come from safe dimension scaling in medium or extreme mode.
Related free document tools
More browser document tools for the same workflow.
Mirown connects related PDF and file tools with clear internal links, so you can move from one task to the next without searching again. Every linked page is free, browser-first, and does not require sign up or login for the main workflow.
Why this page is built for trust
- PNG Compressor is explained with visible instructions, limits, privacy notes, and real page content.
- The tool is browser-first for supported files and does not require account creation for the main workflow.
- Internal links connect related PDF, conversion, compression, merge, split, signature, and watermark pages.
- Important documents should always be reviewed after download before sharing, printing, signing, or uploading.
Frequently asked questions
Is PNG Compressor free?
Yes. Mirown PNG Compressor is free to use, and no sign up or login is required.
Can I upload multiple PNG images?
Yes. You can upload multiple PNG images, compress all files together, and download the results as one ZIP file.
Are files uploaded to Mirown servers?
Supported compression workflows run in the browser. Mirown is designed to avoid server storage for these file tools.
Why did my file not reduce much?
Some files are already compressed. Images, PDFs, and Office files with optimized media may show smaller reductions in a browser-only compressor.